Water heating is a
thermodynamic process using an energy source to
heat water above its initial
temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry both hot water and water heated to
steam have many uses.Domestically, water is traditionally heated in
vessels known as
kettles,
cauldrons,
pots or coppers. These vessels heat a batch of water but do not produce a continual supply. Appliances for providing a more-or-less constant supply of hot water are variously known as water heaters,
boilers,
heat exchangers, calorifiers or geysers depending on whether they are heating
Potable or non-potable water, in domestic or industrial use, their energy source, and in which part of the world they are found. In
domestic installations, potable water heated for uses other than space heating is sometimes known as Domestic Hot Water (DHW).
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